should span
Verbo regular: span - spanned- spanned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd span
you'd span
she'd span
we'd span
you'd span
they'd span 	I'd be spanning
you'd be spanning
she'd be spanning
we'd be spanning
you'd be spanning
they'd be spanning	I should've spanned
you should've spanned
she should've spanned
we should've spanned
you should've spanned
they should've spanned	I should've been spanning
you should've been spanning
she should've been spanning
we should've been spanning
you should've been spanning
they should've been spanning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't span
you shouldn't span
she shouldn't span
we shouldn't span
you shouldn't span
they shouldn't span 	I shouldn't be spanning
you shouldn't be spanning
she shouldn't be spanning
we shouldn't be spanning
you shouldn't be spanning
they shouldn't be spanning	I shouldn't have spanned
you shouldn't have spanned
she shouldn't have spanned
we shouldn't have spanned
you shouldn't have spanned
they shouldn't have spanned	I shouldn't have been spanning
you shouldn't have been spanning
she shouldn't have been spanning
we shouldn't have been spanning
you shouldn't have been spanning
they shouldn't have been spanning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I span?
should you span?
should she span?
should we span?
should you span?
should they span? 	should I be spanning?
should you be spanning?
should she be spanning?
should we be spanning?
should you be spanning?
should they be spanning? 	should I have spanned?
should you have spanned?
should she have spanned?
should we have spanned?
should you have spanned?
should they have spanned? 	should I have been spanning?
should you have been spanning?
should she have been spanning?
should we have been spanning?
should you have been spanning?
should they have been spanning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I span?
shouldn't you span?
shouldn't she span?
shouldn't we span?
shouldn't you span?
shouldn't they span? 	shouldn't I be spanning?
shouldn't you be spanning?
shouldn't she be spanning?
shouldn't we be spanning?
shouldn't you be spanning?
shouldn't they be spanning? 	shouldn't I have spanned?
shouldn't you have spanned?
shouldn't she have spanned?
shouldn't we have spanned?
shouldn't you have spanned?
shouldn't they have spanned? 	shouldn't I have been spanning?
shouldn't you have been spanning?
shouldn't she have been spanning?
shouldn't we have been spanning?
shouldn't you have been spanning?
shouldn't they have been spanning?